Table 1.

Epigenetic variation

Tissue	Number of MSLa	Number of polymorphic MSLb	% significant single-locus variation among populations c	Diversityd
Brain	429 (65.5%)	262	27.7 (q = 0.093)	0.50 (0.15)
Liver	418 (62.5%)	218	5.5 (q = 0.230)	0.48 (0.15)
Gonad	429 (72.6%)	206	35.9 (q = 0.093)	0.50 (0.15)

^a Methylation-susceptible loci.

^b A methylation-susceptible loci was considered polymorphic when at least two individuals showed the non-methylated state.

^c % of the significant single-locus homogeneity tests (χ²) after multiple test correction with sequential combined probability test of Fisher [47]□. q-values are given between brackets providing the expected proportion of false positives.

^d Average Shannon's Diversity Index (±SD).